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Analysis of the hidden-charm tetraquark molecule mass spectrum with the QCD sum rules

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arxiv 2012.11869 v2 pith:3YF3CWU2 submitted 2020-12-22 hep-ph

Zhi-Gang Wang This is my paper · ORCID
classification hep-ph
keywords rulesstatestetraquarkhidden-charmmassmolecularspectrumstrange
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abstract

In this article, we investigate the mass spectrum of the ground state hidden-charm tetraquark molecular states without strange, with strange and with hidden-strange via the QCD sum rules in a comprehensive way and revisit the assignments of the $X$, $Y$, $Z$ states in the scenario of tetraquark molecular states consistently based on the QCD sum rules.

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  1. A femtoscopic tale of two $C$-parities: the $Z_c(3900)$ and the isovector partner of the $X(3872)$

    hep-ph 2026-08 conditional novelty 7.0 of 10

    Femtoscopic correlations of charged charm meson pairs mix C-odd and C-even interactions, giving a new experimental probe of the predicted W_c1 state and correcting earlier predictions.

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